The Hundred-Year-Old Man Who Climbed Out the Window and Disappeared------pan macmillan

At a medieval re-enactment event, some-fin very weird starts going on. One of the knights is acting very suspiciously . . . and Tom is sure he's seen his evil big brother's vampire kitten lurking around. Can Pradeep and Tom work out what Mark is up to without revealing Frankie's secret zombie skills?